HP Instant Capacity User's Guide for Version 9.x

A.12 Dynamic Processor Resilience (HP-UX)
The LPMC monitor, within the Support Tools Manager (STM) diagnostics, generates Information
events for all cache errors that are detected. After three errors (Threshold) are detected on a
processor in 1440 minutes, or a 24-hour period of time (Period), the monitor deactivates that
particular processor, marks it for deconfiguration on the next system reboot, and generates a
Serious event. After the failed processor is deactivated, the LPMC monitor attempts to activate
one of the inactive Instant Capacity cores, if any are available. This method ensures the processing
power of the system is unchanged.
A default value of 3 is assigned to Threshold, except for the PCX-W+ family of processors, which
have a value of 5 assigned. The default value assigned to a Period is 1440 minutes, or 24 hours,
in all possible processor configurations.
An inactive processor under warranty or support automatically replaces a failed processor. HP
also services and replaces any failed processor.
Monarch Processors
For details about replacing failed monarch processors, see “Failed Monarch Processors (HP-UX)”
(page 71).
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